diff options
| author | Alan <alan@lxorguk.ukuu.org.uk> | 2006-11-22 17:18:30 +0000 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-01 22:46:43 -0500 |
| commit | d39ca896fb9a25f80465d3e52872cf5c510762a8 (patch) | |
| tree | e75e337e59722060029596df12ba0a0a94e7557e /drivers/ata | |
| parent | f7e37ba83fd3e92411dfc97d08eaf9d85dfac2ee (diff) | |
| download | kernel_samsung_tuna-d39ca896fb9a25f80465d3e52872cf5c510762a8.zip kernel_samsung_tuna-d39ca896fb9a25f80465d3e52872cf5c510762a8.tar.gz kernel_samsung_tuna-d39ca896fb9a25f80465d3e52872cf5c510762a8.tar.bz2 | |
[PATCH] pata_jmicron: fix JMB368 support, add suspend/resume handling
This (and the pci resume quirk code) get the JMicron controllers to
resume properly. Without this patch the drive mapping changes when you
suspend/resume which is not good at all....
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata')
| -rw-r--r-- | drivers/ata/pata_jmicron.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c index 0210b10..c9f0a54 100644 --- a/drivers/ata/pata_jmicron.c +++ b/drivers/ata/pata_jmicron.c @@ -19,7 +19,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_jmicron" -#define DRV_VERSION "0.1.2" +#define DRV_VERSION "0.1.4" typedef enum { PORT_PATA0 = 0, @@ -213,12 +213,11 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i /* FIXME: We may want a way to override this in future */ pci_write_config_byte(pdev, 0x41, 0xa1); - } - - /* PATA controller is fn 1, AHCI is fn 0 */ - if (PCI_FUNC(pdev->devfn) != 1) - return -ENODEV; + /* PATA controller is fn 1, AHCI is fn 0 */ + if (PCI_FUNC(pdev->devfn) != 1) + return -ENODEV; + } if ( id->driver_data == 365 || id->driver_data == 366) { /* The 365/66 have two PATA channels, redirect the second */ pci_read_config_dword(pdev, 0x80, ®); @@ -229,6 +228,27 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i return ata_pci_init_one(pdev, port_info, 2); } +static int jmicron_reinit_one(struct pci_dev *pdev) +{ + u32 reg; + + switch(pdev->device) { + case PCI_DEVICE_ID_JMICRON_JMB368: + break; + case PCI_DEVICE_ID_JMICRON_JMB365: + case PCI_DEVICE_ID_JMICRON_JMB366: + /* Restore mapping or disks swap and boy does it get ugly */ + pci_read_config_dword(pdev, 0x80, ®); + reg |= (1 << 24); /* IDE1 to PATA IDE secondary */ + pci_write_config_dword(pdev, 0x80, reg); + /* Fall through */ + default: + /* Make sure AHCI is turned back on */ + pci_write_config_byte(pdev, 0x41, 0xa1); + } + return ata_pci_device_resume(pdev); +} + static const struct pci_device_id jmicron_pci_tbl[] = { { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB361), 361}, { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB363), 363}, @@ -244,6 +264,8 @@ static struct pci_driver jmicron_pci_driver = { .id_table = jmicron_pci_tbl, .probe = jmicron_init_one, .remove = ata_pci_remove_one, + .suspend = ata_pci_device_suspend, + .resume = jmicron_reinit_one, }; static int __init jmicron_init(void) |